💄 Optimize background color

lib/screens/chat/call_room.dart

@@ -124,7 +124,7 @@ class _CallRoomScreenState extends State<CallRoomScreen> {
         listenable: call,
         builder: (context, _) {
           return AppScaffold(
-            noBackground: true,
+            noBackground: ResponsiveScaffold.getIsExpand(context),
             appBar: AppBar(
               title: RichText(
                 textAlign: TextAlign.center,

lib/screens/chat/channel_detail.dart

@@ -220,7 +220,7 @@ class _ChannelDetailScreenState extends State<ChannelDetailScreen> {
     final isOwned = ua.isAuthorized && _channel?.accountId == ua.user?.id;
 
     return AppScaffold(
-      noBackground: true,
+      noBackground: ResponsiveScaffold.getIsExpand(context),
       appBar: AppBar(
         title: _channel != null ? Text(_channel!.name) : Text('loading').tr(),
       ),

lib/screens/chat/manage.dart

@@ -141,7 +141,7 @@ class _ChatManageScreenState extends State<ChatManageScreen> {
   @override
   Widget build(BuildContext context) {
     return AppScaffold(
-      noBackground: true,
+      noBackground: ResponsiveScaffold.getIsExpand(context),
       appBar: AppBar(
         title: widget.editingChannelAlias != null
             ? Text('screenChatManage').tr()

lib/screens/chat/room.dart

@@ -304,7 +304,7 @@ class _ChatRoomScreenState extends State<ChatRoomScreen> {
     final ud = context.read<UserDirectoryProvider>();
 
     return AppScaffold(
-      noBackground: true,
+      noBackground: ResponsiveScaffold.getIsExpand(context),
       appBar: AppBar(
         title: Text(
           _channel?.type == 1